惊心动魄，超4700只个股下跌，日成交量再上3万亿

Market Overview - The A-share market experienced a significant drop after a strong opening led by the AI sector, with the Shanghai Composite Index reaching a high of 3887.20 points before falling over 80 points, closing down 1.76% at just above 3800 points [1][15] - The total market turnover exceeded 3.19 trillion yuan, marking the third instance in A-share history to surpass 3 trillion yuan in a single day [1][15] AI Sector Performance - Despite the overall market decline, AI-related stocks surged, with notable gains in companies like Cambrian (寒武纪), which saw its stock price peak at 1438 yuan, making it the new "king" of A-shares [2][8] - Key stocks in the AI sector included Longxin Technology, which rose over 20%, and other companies like New Yisheng and SourceJet Technology also performed strongly [2][8] Policy and Industry Drivers - The recent government policy document emphasized the integration of AI across six key sectors by 2027, aiming for a significant increase in the application of new intelligent terminals and AI capabilities [8] - Major tech companies are actively enhancing their AI capabilities, with Google launching its Tensor G5 chip and Apple planning to integrate AI into its products [9] Semiconductor Sector - The semiconductor sector also saw strong performance, with companies like Lexin Technology achieving a 20% increase in stock price during trading [2][9] - The ongoing development of domestic AI models is expected to boost the AI computing market in China, enhancing the competitiveness of domestic AI chips [9] Rare Earth Sector - The rare earth sector experienced a notable increase in stock prices, driven by strong earnings reports and rising prices of rare earth materials, with North Mining Technology hitting the daily limit [10][14] - The average price of major rare earth products has risen by over 10,000 yuan per ton since August, indicating a bullish outlook for the sector [14] Conclusion - Overall, while the A-share market faced a downturn, specific sectors such as AI and rare earths demonstrated resilience and growth potential, driven by policy support and strong market demand [1][10][14]